The best suggestion about post retirement investment is that you should not try putting all your money in one scheme. It is better if you have separate investment schemes from all your past employers and you have to just keep an eye on them.
You can not normally link two different investment accounts together as they may not belong to the same domain. However, 401(k) is one scheme that can be linked to any of its other counterparts. This is true for all the other investment schemes such as 403(b). IRA is the last option for you that can roll over all these schemes.
Investing your money at many places can have more benefits than people can think. Making one account and managing that efficiently will not let you fees at various places and accounts. Having one account can help you save that.
Yet another misconception about the 401(k) is that it can not be rolled over any other scheme. If you want to roll over 401(k), you can then too access the account by IRA.
Using a roll over IRA account, you can get the benefits of all the other schemes. Your financial adviser will let you know more, but some of the schemes are so lucrative that you cannot ignore but opt for them. This consolidation strategy can help you let earn more amount but do not try to get rid of your diversified investment. What you can do is that you can manage a balanced equilibrium in all your investments. This will yield you maximum benefit with minimizing risk.
There is in fact nothing right and wrong about this consolidation process. It is your sole discretion to opt for the one more favorable for you. If you are fed up of managing 5-6 accounts go for the consolidation roll over. This can be the best act you are going to do to boost your post retirement plans.
